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Re: Frysk minutes 20060905

From: Andrew Cagney <cagney at redhat dot com>
To: Wu Zhou <woodzltc at cn dot ibm dot com>
Cc: Elena Zannoni <ezannoni at redhat dot com>, frysk at sources dot redhat dot com
Date: Wed, 06 Sep 2006 00:31:20 -0400
Subject: Re: Frysk minutes 20060905
References: <17661.51678.659095.25687@localhost.redhat.com> <44FE4885.9030303@cn.ibm.com>

Wu Zhou wrote:

libunwind: please test Alex patches. Andrew: to review. We can start
plug it into the sourcewindow, in the space reserved for it already.
The patches from Alex are not checked in yet. Please review and check
in asap.
We had a test. TestStackBacktrace works ok with this patch applied. But we have a concern that frysk-sys are using some synchronization mechanism to handle ptrace requests. This patch use ptrace directly. Is it possible some synchroinization problem might be introduced in?

Wu, good catch. Yes, the backtrace code cannot call ptrace directory; it will not work. All ptrace calls must be routed through the ptrace thread that Mike added.

Andrew

Follow-Ups:
- Re: Frysk minutes 20060905
  - From: Alexandre Oliva

References:
- Frysk minutes 20060905
  - From: Elena Zannoni
- Re: Frysk minutes 20060905
  - From: Wu Zhou

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